Evidence map›Paper›PMID 34187381›Full record

ArticleBMC geriatrics2021

Association of serum 25-hydroxyvitamin D with metabolic syndrome and type 2 diabetes: a one sample Mendelian randomization study.

Jing Xiao, Jingyi Lv, Shiyu Wang, Yang Zhou, Lunwen Chen, Juying Lu, Xiaoyi Zhang, Xiaojian Wang, Yunjuan Gu, Qingyun Lu

Open access · goldAbstract read
In one paragraph

Article in BMC geriatrics, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 1 pooled it
2.4field-weighted citation impact, top 11% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

9 citing papers in PubMed, 1 synthesis or guideline pooled it, 21 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Oman medical journal · 2024
    Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. The Association BetweenDiabetes, metabolic syndrome and obesity : targets and therapy · 2022
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors at 3 institutions in 1 country.

Jing Xiao *Department of Epidemiology and Medical Statistics, School of Public Health, Nantong University, No.9 Seyuan Road, Chongchuan District, Nantong, Jiangsu, P.R. China, 226019.
Jingyi Lv *Department of Epidemiology and Medical Statistics, School of Public Health, Nantong University, No.9 Seyuan Road, Chongchuan District, Nantong, Jiangsu, P.R. China, 226019.
Shiyu Wang *Department of Epidemiology and Medical Statistics, School of Public Health, Nantong University, No.9 Seyuan Road, Chongchuan District, Nantong, Jiangsu, P.R. China, 226019.
Yang ZhouDepartment of Epidemiology and Medical Statistics, School of Public Health, Nantong University, No.9 Seyuan Road, Chongchuan District, Nantong, Jiangsu, P.R. China, 226019.
Lunwen ChenDepartment of Epidemiology and Medical Statistics, School of Public Health, Nantong University, No.9 Seyuan Road, Chongchuan District, Nantong, Jiangsu, P.R. China, 226019.
Juying LuDepartment of Endocrinology and Metabolism, Affiliated Hospital of Nantong University, No.20 Xisi Road, Chongchuan District, Nantong, Jiangsu, P.R. China, 226001.
Xiaoyi ZhangDepartment of Endocrinology and Metabolism, Affiliated Hospital of Nantong University, No.20 Xisi Road, Chongchuan District, Nantong, Jiangsu, P.R. China, 226001.
Xiaojian WangDepartment of Chronic Disease and Prevention, Center for Disease Control and Prevention of Haian, Nantong, Jiangsu, P.R. China, 226600.
Yunjuan GuDepartment of Endocrinology and Metabolism, Affiliated Hospital of Nantong University, No.20 Xisi Road, Chongchuan District, Nantong, Jiangsu, P.R. China, 226001. desette@ntu.edu.cn.
Qingyun LuDepartment of Epidemiology and Medical Statistics, School of Public Health, Nantong University, No.9 Seyuan Road, Chongchuan District, Nantong, Jiangsu, P.R. China, 226019. qingyun79@126.com.
Nantong University · CNAffiliated Hospital of Nantong University · CNHainan Center for Disease Control & Prevention · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundVitamin D deficiency has been associated with type 2 diabetes (T2D) and metabolic syndrome (MS) and its components. However, it is unclear whether a low concentration of vitamin D is the cause or consequence of these health conditions. Thus, this study aimed to evaluate the association of vitamin D concentrations and its genetic risk scores (GRSs) with MS and its component diseases, such as T2D, in middle-aged and elderly participants from rural eastern China.

methodsA subset of 2393 middle-aged and elderly individuals were selected from 70,458 participants of the Nantong Chronic Diseases Study of 2017-2018 in China. We used two 25-hydroxyvitamin D (25[OH]D) synthesis single-nucleotide polymorphisms (SNPs) (DHCR7-rs12785878 and CYP2R1-rs10741657) and two 25(OH) D metabolism SNPs (GC-rs2282679 and CYP24A1-rs6013897) for creating GRSs, which were used as instrumental variables to assess the effect of genetically lowered 25(OH) D concentrations on MS and T2D based on the Wald ratio. F statistics were used to validate that the four SNPs genetically determined 25(OH) D concentrations.

resultsCompared to vitamin D sufficient individuals, individuals with vitamin D insufficiency had an odds ratio (OR [95% confidence interval {CI}]) of MS of 1.30 (1.06-1.61) and of T2D of 1.32 (1.08-1.64), individuals with vitamin D deficiency had an ORs (95% CI) of MS of 1.50 (1.24-1.79) and of T2D of 1.47 (1.12-1.80), and those with vitamin D severe deficiency had an ORs (95% CI) of MS of 1.52 (1.29-1.85) and of T2D of 1.54 (1.27-1.85). Mendelian randomization analysis showed a 25-nmol/L decrease in genetically instrumented serum 25(OH) D concentrations using the two synthesis SNPs (DHCR7 and CYP2R1 genes) associated with the risk of T2D and abnormal diastolic blood pressure (DBP) with ORs of 1.10 (95%CI: 1.02-1.45) for T2D and 1.14 (95%CI: 1.03-1.43) for DBP.

conclusionsThis one sample Mendelian randomization analysis shows genetic evidence for a causal role of lower 25(OH) D concentrations in promoting of T2D and abnormal DBP in middle-aged and elderly participants from rural China.

Indexed as

Diabetes Mellitus, Type 2Metabolic SyndromeVitamin D DeficiencyAgedChinaHumansMendelian Randomization AnalysisMiddle AgedPolymorphism, Single NucleotideVitamin D25-hydroxyvitamin DVitamin D25-hydroxyvitamin DGenetic risk scoresMendelian randomizationMetabolic syndromeType 2 diabetes

Identifiers

PMID34187381
PMCPMC8244233
OpenAlexW3130239779

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.